P. Denham
发表
P. J. Dean,
E. C. Lightowlers,
P. Denham,
1967
.
W. Price,
P. Denham,
G. Wilkinson,
1970,
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.
P. Denham,
G. Wilkinson,
P. Morse,
1973
.